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9944a5dff5
Summary:
* This adds a `EdenServer::recover()` method to start back up on unsuccessful takeover data send.
* On an unsuccessful ping, filfill the `shutdownPromise` with a `TakeoverSendError` continaing the constructed `TakeoverData`. After this `recover` function is called, `takeoverPromise_` is reset, `takeoverShutdown` is set to `false`, and the `runningState_` is set to `RUNNING`.
With taking over from the returned `TakeoverData`, the user will not encounter `Transport not connected` errors on recovery.
* This adds a `EdenServer::closeStorage()` method to defer closing the `backingStore_` and `localStore_` until after our ready handshake is successful.
* This defers the shutdown of the `PrivHelper` until a successful ready handshake.
I also update the takeover documentation here with the new logic (and fix some formatting issues)
Reviewed By: simpkins
Differential Revision: D20433433
fbshipit-source-id: f59e660922674d281957e80aee5049735b901a2c
48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This software may be used and distributed according to the terms of the
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* GNU General Public License version 2.
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*/
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#pragma once
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#include <string>
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namespace facebook {
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namespace eden {
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class EdenConfig;
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class EdenServer;
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/**
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* Hooks to customize the flavor of the edenfs daemon build.
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*/
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class EdenMain {
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public:
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virtual ~EdenMain() = default;
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virtual std::string getEdenfsBuildName() = 0;
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virtual std::string getEdenfsVersion() = 0;
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virtual std::string getLocalHostname() = 0;
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virtual void prepare(const EdenServer& server) = 0;
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virtual void runServer(const EdenServer& server) = 0;
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};
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/**
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* A default, open-source implementation of EdenMain.
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*/
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class DefaultEdenMain : public EdenMain {
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public:
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virtual std::string getEdenfsBuildName() override;
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virtual std::string getEdenfsVersion() override;
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virtual std::string getLocalHostname() override;
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virtual void prepare(const EdenServer& server) override;
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virtual void runServer(const EdenServer& server) override;
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};
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int runEdenMain(EdenMain&& main, int argc, char** argv);
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} // namespace eden
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} // namespace facebook
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